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Java Java Data Structures Exploring the Java Collection Framework Upgrade Comparable to use Generics

romeo draven
romeo draven
3,723 Points

Upgrade comparables challenge

Slightly confused on what I'm doing wrong here. I'm getting the same errors even if I don't change the code ( JavaTester.java:67: error: illegal start of expression package com.example; ^ JavaTester.java:67: error: not a statement package com.example; ^ JavaTester.java:69: error: illegal start of expression import java.io.Serializable; ^ JavaTester.java:69: error: not a statement import java.io.Serializable; ^ JavaTester.java:70: error: illegal start of expression import java.util.Date; ^ JavaTester.java:70: error: not a statement import java.util.Date; ^ JavaTester.java:72: error: illegal start of expression public class BlogPost implements Comparable, Serializable { ^ 7 errors)

package com.example;

import java.io.Serializable;
import java.util.Date;

public class BlogPost implements Comparable<BlogPost>, Serializable {
  private String mAuthor;
  private String mTitle;
  private String mBody;
  private String mCategory;
  private Date mCreationDate;

  public BlogPost(String author, String title, String body, String category, Date creationDate) {
    mAuthor = author;
    mTitle = title;
    mBody = body;
    mCategory = category;
    mCreationDate = creationDate;

  public int compareTo(BlogPost other) {
    if (equals(other)) {
      return 0;
    return mCreationDate.compareTo(other.mCreationDate);

  public String[] getWords() {
    return mBody.split("[^\\w']+");

  public String getAuthor() {
    return mAuthor;

  public String getTitle() {
    return mTitle;

  public String getBody() {
    return mBody;

  public String getCategory() {
    return mCategory;

  public Date getCreationDate() {
    return mCreationDate;

1 Answer

romeo draven
romeo draven
3,723 Points

Edit: Seems to be an error with some of the Java challenges. Support staff seem to be aware of this.